Ecosystems 1
Ecosystems 2
Ecosystems 3
Ecosystems 4
Ecosystems 5
Ecosystems 6
100
something that makes food for itself
What is a producer?
100
An organism that uses sunlight to create its food
What is a producer
100
What happens to a population of rabbits when predators are present?
The population of rabbits is going to go up and down with predators, so the population is stabilized.
100
Where does grass get its energy from and why?
From the sun, because it is a producer.
100
Where does a wolf get its energy from and why?
From smaller/primary consumers
100
The arrows in a food chain and food web represent....
What is the flow of energy?
200
something that eats something else for food
What is a consumer?
200
What type of organism is found at the beginning of all food chains?
Producers
200
Fungi are on the food chain and they are responsible for ________________
What is breaking down decaying materials (decomposers)
200
a system of overlapping food chains
What is a food web?
200
the flow of energy from a producer to one or more consumers. (ie: linked together by their feeding relationships)
What is a food chain?
200
What happens to a population of bunnies that has no predators?
The population increases.
300
Animals ____________ for food, water, territory, and mates.
What is a competition/compete?
300
Any living thing that feeds on the waste of dead bodies of other living things.
What is a decomposer?
300
bacteria, fungi, worms, ants, beetles, sow bugs
What are some examples of decomposers?
300
Many of the same species is a...
What is a population?
300
At the start of a food chain; what are those organisms called
What are producers
300
What is the first species to an area called?
pioneer species
400
the living and nonliving things and the ways they interact in an environment (ex: forest, wetland, desert)
What is an ecosystem?
400
An organism that feeds on dead and decaying organisms
What are scavengers?
400
living and nonliving things are parts that make this.
What are ecosystems?
400
secondary succession means?
there was previously soil in the area where new growth is taking place (typically happens after a forest fire/etc)
400
Doubling a region’s human population would most likely change the environment by...
Building new homes, roads, etc.
400
In the a food web the mushroom and bacteria are....
What are decomposers?
500
Environmental changes happen all the time. Some of these changes are easy to spot. For example, the figure below shows a sign that you might see while riding along a road in many places.
What can you conclude about environmental changes after seeing this sign?
Humans can destroy habitats.
500
What does a food web show?
How animals rely on each other in an environment to live. A series of food chains showing energy flow.
500
food + O2 --> CO2 + H2O + energy
What is the desert?
500
An animal that eats plants or other animals and does not make its own food.
What is a consumer?
500
what is the organism that eats the producer called
What are primary consumers? (herbivores typically)
500
What are 3 limiting factors for a population?
Food, water, space
600
A relationship when both benefit each other.
What is mutualism?
600
A mosquito sucking blood from a person is a
parasitic relationship
600
All energy flow flows in this.
What is a food web/food chain?
600
Three types of organisms in an ecosystem.
What are producers, consumers, and decomposers?
600
5 needs of living things:
water
food
energy
oxygen
suitable living conditions
600
a bird flying south for the winter is an example of a _________ adaptation
behavioral
700
Energy flows and matter __________
cycles
700
when neither organism benefits or is harmed this is called
commensalism
700
What part of an ecosystem are a swarm of bees?
What is a population?
700
a non native species that takes over an area
bioinvasion
700
something that is being hunted
prey
700
sun + CO2 + H2O --> food+ O2
photosynthesis